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High efficiency solidifying processing agent for waste sludge in oil area and its solidifying treating process

A solidification treatment, waste mud technology, applied in the direction of sludge treatment, water/sludge/sewage treatment, dehydration/drying/thickened sludge treatment, etc., can solve the problems of environmental pollution of waste mud in oil fields, and achieve the setting and hardening time Short, less extractables, good plant growth effect

Inactive Publication Date: 2009-06-24
俞然刚
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Problems solved by technology

[0010] The purpose of the present invention is to study a high-efficiency solidification treatment agent for waste mud in oil fields and its solidification treatment process to solve the problem of environmental pollution caused by waste mud in oil fields

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  • High efficiency solidifying processing agent for waste sludge in oil area and its solidifying treating process

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Embodiment Construction

[0026] The technical solution of the present invention is achieved in the following manner: the high-efficiency solidification treatment agent for waste mud in the oil field of the present invention mainly consists of two parts:

[0027] One part is composed of calcium-containing phosphate or superphosphate ion precipitant, acrylate polymer gel breaker, sepiolite and quicklime powder adsorbent, and the proportions (referring to the percentage content of the waste mud weight) are: ion precipitation agent (1-3%), gel breaker (1-2%), adsorbent (2-8%), the main function is to separate a large amount of water and some harmful substances in the waste mud, and detoxify the harmful substances in the liquid Substances are treated so that the treated water meets the GB5084-92 farmland irrigation standard.

[0028] The other part is composed of sulfoaluminate cement hardener, potassium alum loosening agent, and gypsum powder, and its proportioning (referring to the percentage content of ...

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Abstract

The invention relates to the treatment of waste drilling mud in oil fields in the technical field of environmental protection. The technical scheme of the present invention comprises two major parts. 1. High-efficiency solidification treatment agent for waste mud in the oil area: one part is composed of 1-3% ion precipitant, 1-2% gel breaker, and 2-8% adsorbent, which account for the weight of waste mud; the other part is composed of sedimentation It is composed of 5-20% of sulfoaluminate hardening agent, 2-4% of loosening agent and 2-8% of gypsum powder in the percentage of solid weight. 2. The treatment process of using the high-efficiency solidification treatment agent for waste mud in the oil area: first, mix the waste mud with the mixed ion precipitant and gel breaker in proportion and mix them evenly, and then add the adsorbent to the waste water after standing still for 1-3 hours Finally, stir, and then mix the separated settled solid with the mixed sulphoaluminate hardener, loosening agent, and gypsum powder in proportion and mix evenly, and then stop for 3-7 days until it is qualified. The invention has good water stability, the cured product meets the requirements of the planting soil, the raw materials are easy to purchase, the use is convenient, and the curing effect is good.

Description

1. Technical field [0001] The invention relates to the comprehensive treatment of drilling waste mud in oil fields in the technical field of environmental protection. 2. Background technology [0002] For more than 100 years of modern petroleum exploration and development, drilling waste mud has also existed for more than a century. Taking Shengli Oilfield as an example, in recent years, the oilfield needs to drill about 1,000 various production wells, exploration wells, and inspection wells each year, and the waste mud produced by each well is about 100m 3 Above, approximately 1.0×10 5 m 3 The above drilling waste mud. Due to the dispersion and concealment of waste mud, its pollution prevention and comprehensive treatment have not attracted enough attention, and the research on the comprehensive treatment and reuse technology of waste mud started relatively late. [0003] Drilling waste mud is divided into two categories: water-based mud and oil-based mud. Oilfield dril...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00C02F11/14
Inventor 俞然刚陈金平崔亦栋
Owner 俞然刚
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